Coffee

You may need a cup of coffee to even be functional at work in the morning, but many studies show it provides a multitude of benefits aside from the energy boost. One Harvard study found that drinking several cups of coffee daily reduced symptoms of depression, and therefore the risk of suicide in both men and women by over 50%. “Caffeine not only stimulates the central nervous system but may act as a mild antidepressant by boosting production of certain neurotransmitters in the brain, including serotonin, dopamine, and noradrenaline,” according to the Harvard School of Public Health.